The push is a real pain, but seems to get stronger as you get further away. Found that the best place to be is right on top of 'em. Parsed @ 170mil HP which may be incomplete as I was pushed away a few times, but likely didn't miss much. Prolly around 175-180mil HP, but maybe as much as 200mil. Dropped Ancient Pirate's Eyepatch, Bracelet of the Deep Sea, Dread Touched Bracer, Minor Dreadmote Fight lasted ~20 minutes